[aredox]

>It basically sounds something like “drug companies couldn’t show their vaccines were safe enough like other drugs

Can you point exactly where in the given link there is something that could be summarized or interpreted as such?

“drug companies couldn’t show their vaccines were safe enough" is nowhere to be found. What I can see is this:

"A 1982 TV news report entitled Vaccine Roulette suggested that the whole-cell pertussis vaccine was the cause of permanent brain injury. Subsequent studies indicated that while the whole-cell vaccine was associated with febrile seizures, it was not associated with long-term brain damage. However, those studies took at least 10 years to exonerate the vaccine."

Vaccine manufacturers demonstrated their product was safe before being put to the market (that's the reason for the different "phases"). A concern was raised by a TV news report. The vaccine manufacturers proved - after a long study - that it wasn't the case, their product was demonstrably safe.

Where have you found elements to support your assertion the linked references show “drug companies couldn’t show their vaccines were safe"?